{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x8164846376b2211916776400ba2e8ee710b04429c51f8b96ca800acebf842f88",
    "signature": "0x97d4e913cde69a75be9cc7c99419059b95299ab10c8819ca9a86a8e1a18650967df27c803060670b6f187da8839dc69a0b6712f2f1f92386bf0346472dfd55b51c",
    "signer": "0x6847b1C1dC4037586AE520454F7D9082f75cDB2c",
    "userId": "857826100"
  }
}